Grenville, SD
Climate overview — based on NOAA 1991-2020 normals from WAUBAY NATL WILD LIFE, SD US.
Year-round temperatures (°F)
Climate summary
Grenville has an annual average temperature of 44.1°F with about 22.5 inches of precipitation per year and 35.6 inches of snow. The warmest month is July (average high 81.7°F), and the coldest is January (average low 3.5°F). July is typically the wettest month (3.79 in) and February the driest (0.54 in). Snow typically falls from October through April.
Best time to visit Grenville
Full guide →Climate change signal
All-time records →23 of 366 (6.3%) of Grenville's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1950s | 54 | |
| 1960s | 63 | |
| 1970s | 73 | |
| 1980s | 76 | |
| 1990s | 44 | |
| 2000s | 25 | |
| 2010s | 18 | |
| 2020s | 13 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 21.7°F | 3.5°F | 12.6°F | 0.60 in | 6.6 in | 6 |
| February | 26.4°F | 7.0°F | 16.7°F | 0.54 in | 6.0 in | 4 |
| March | 38.7°F | 19.2°F | 29.0°F | 0.84 in | 5.5 in | 5 |
| April | 54.0°F | 32.8°F | 43.4°F | 1.96 in | 5.0 in | 6 |
| May | 67.6°F | 46.6°F | 57.1°F | 2.93 in | — | 10 |
| June | 76.8°F | 57.6°F | 67.2°F | 3.69 in | — | 10 |
| July | 81.7°F | 62.2°F | 72.0°F | 3.79 in | — | 9 |
| August | 80.5°F | 60.8°F | 70.6°F | 2.26 in | — | 7 |
| September | 72.6°F | 52.0°F | 62.3°F | 2.39 in | — | 7 |
| October | 57.0°F | 38.4°F | 47.7°F | 2.17 in | 1.2 in | 7 |
| November | 39.9°F | 23.9°F | 31.9°F | 0.69 in | 5.0 in | 5 |
| December | 26.5°F | 10.5°F | 18.5°F | 0.66 in | 6.3 in | 6 |
Climate twins of Grenville
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).